Additions and corrections

A highly sensitive electrochemical genosensor based on Co-porphyrin-labelled DNA

Iwona Grabowska, Daniel G. Singleton, Anna Stachyra, Anna Góra-Sochacka, Agnieszka Sirko, Włodzimierz Zagórski-Ostoja, Hanna Radecka, Eugen Stulz and Jerzy Radecki

Chem. Commun., 2014, 50, 4196–4199 (DOI: 10.1039/C4CC00172A). Amendment published 01 May 2014.

The legend for Fig. 2c is incorrect. The correct legend is given below.

Fig. 2. Representative Osteryoung square-wave voltammograms (OSWVs; 1 mV, square-wave frequency: 50 Hz and amplitude: 25 mV) obtained for electrode modified with Co-porphyrin-ssDNA probe: 5'-APT TGG AGC TAT AGC AGG TT-3' (a) after hybridisation with 20-mer complementary ssDNA and (b) in the presence of sequence with three complementary bases at concentrations of 0, 10, 20, 40, 60 and 80 fM (buffer conditions: 0.9 M NaCl, 0.09 M sodium citrate, pH 7.0). (c) Relative intensity of redox Co(II)/Co(III) current vs. log of concentration of 20-mer complementary ssDNA 5'-AAC CTG CTA TAG CTC CAA AT-3' (●); sequence with three complementary bases: 5'-GGA GTT CCT CTC TCA TCA TC-3' (■); sequence with one complementary base: 5'-GAA GAA GAG AGA GGA ACT CC-3' (▲); fully non-complementary sequence: 5'-TTG GAC GAT ATC GAG GTT TA-3' (○).

The Royal Society of Chemistry apologises for this error and any consequent inconvenience to authors and readers.

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